body {
    margin: 0px;
    display: flex;
    justify-content: center;
    min-height: 100vh;
}

.content-holder {
    max-width: 750px;
    width: 85%;
    border: 1px solid black;
    padding: 15px;
    height: 100vh;
    position: relative;
}

.header {
    text-align: center;
}

.header > a {
    text-decoration: none;
}

.header > a > h1 {
    font-size: 3.5em;
    transform: perspective(2cm) rotateX(15deg);
    margin-bottom: 10px;
}

.header>h2 {
    margin-top: 0px;
}

h1, h2, h3, h4, h5, h6 {
    text-align: center;
}

.other-articles {
    text-align: center;
}

.other-articles > ul > li {
    display: inline-block;
    margin: 5px;
    padding: 15px;
    border-radius:15px;
}

.other-articles > ul {
    padding: 0px;
}